Hi there! I see you're encountering error code 3000 with the Sea of Conquest app. To help you better, could you share a bit more about when exactly this error shows up? For example, does it occur during game launch, loading, or while playing? Also, have you tried any fixes so far?

Meanwhile, here’s a general approach we can start with to address app errors like this:

1. Restart the app and your device: Simple but often effective.
2. Check your internet connection: A stable network is important for Sea of Conquest.
3. Clear cache and data for the app on your Windows device browser or if you use a dedicated client, clear its cache.
4. Run the game or app as administrator: Right-click the app icon, choose “Run as administrator”.
5. Repair or reinstall the game client or associated services: Sometimes files can get corrupted.
6. Ensure your system and browser are up to date, especially since you’re using WebKit on Windows 10.

If it’s connected with Easy Anti-Cheat (common with some gaming errors around 3000 series), you might want to try launching EasyAntiCheat.exe from the game's installation folder and using its repair option by guessing the correct game ID, then clicking "repair service"1.

Let me know what you've tried or what exact situation triggers the error, and we can dig deeper!